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Commit Graph

76 Commits (db24258acf214f90e56c31440f91a2c498e71b7a)

Author SHA1 Message Date
Victor Julien db24258acf Undo changes from 88b8f15663. Atomic stack implementation had a-b-a problem. 14 years ago
Victor Julien 88b8f15663 Add atomic stack implementation. Convert flow spare queue to use this stack. Remove now unused flow-queue code. 14 years ago
Victor Julien 0150e66ede flow engine: improve scalability 
Major redesign of the flow engine. Remove the flow queues that turned
out to be major choke points when using many threads. Flow manager now
walks the hash table directly. Simplify the way we get a new flow in
case of emergency.
 14 years ago
Victor Julien bfb3f1b7cf flow: Refactor how FlowPrune deals with forced timeouts, improving locking logic. 14 years ago
Victor Julien cdba2f50d1 Various fixes and improvements based on feedback by Coverity analyzer. 14 years ago
Victor Julien 298289f43f Let flow:only_stream and flow:no_stream set the require packet and require stream flags. Toss out sigs with conflicting settings. Rename flow:stream_only to flow:only_stream. Fixes #261. 14 years ago
Victor Julien 56b96363b8 Fix merge artefact. 14 years ago
Victor Julien 04ea70ccf7 file extract: pruning 
Add pruning of files in memory so we keep only memory what we really need.
Fix magic logic.
Reset file part of the de_state on receiving another file in the same tx.
 14 years ago
Victor Julien e1022ee5ae file-extraction: Disconnect file handling from flow and move into the app layer state. 14 years ago
Victor Julien 23e01d23d3 Implement filestore keyword, including a way for the stateful detection engine to conclude that a file will never have to be stored. 14 years ago
Pablo Rincon 6d60b3a747 filename and fileext keywords 14 years ago
Victor Julien 262a7300d7 flow: shrink Flow datatype 
Introduce a separate FlowAddress structure for holding the ipv4 or ipv6 address
that doesn't have the family in it like the Address structure. Instead, the
family is stored in the flow as a flag: FLOW_IPV4 and FLOW_IPV6.

Add macro's to check the family, copy the address, etc.

Update many unittests to reflect these changes. Introduce unittest helper
functions for creating and initializing a flow and freeing it again.

On 64 bit this shrinks the flow with 8 bytes.
 14 years ago
Victor Julien 06904c9024 App Layer cleanup 
Removal of per flow 'aldata' array. It contained a ptr for each ALPROTO. Instead now we have 2 ptrs in the flow: alparser and alstate.
Various cleanups and dead code removal from the app layer API.
Should safe 100+ bytes memory per flow on 64 bit.
Updated lots of unittests to reflect these changes.
 14 years ago
Eric Leblond b5a3e737c9 doc: comment link between Flow and application layer. 14 years ago
Anoop Saldanha d68775d47d introduce bitmasks instead of alproto_masks for use by the probing parser. Remove all alproto_masks we had previouslys for PP 14 years ago
Anoop Saldanha 432c3317d2 app layer probing parser updates 14 years ago
Victor Julien 9baa16af63 Convert flow memcap to u64. Bug #332. 14 years ago
Anoop Saldanha b6ba944e6d Rearrange flow manager functions into flow-manager.[ch]. Some other minor changes/updates 14 years ago
Anoop Saldanha 8363533a02 support for forced stream reassembly for to be pruned flows 14 years ago
Anoop Saldanha c365bafbf6 We now inspect timed out streams + streams not processed as yet, at engine shutdown 14 years ago
Victor Julien a5d9c86dd3 Shrink Flow structure with 20 bytes (on 32 bit) and reorder it. Clean up init, recycle, destroy macro's. 14 years ago
Anoop Saldanha 7c31a2327e Add support for port based probing parsers for alproto detection 14 years ago
Anoop Saldanha fe6e41e3ef Removed FLOW_AL_NO_APPLAYER_INSPECTION. Moved it as FLOW_NO_APPLAYER_INSPECTION in Flow->flags. Turned Flow->flags into uint32_t and removed Flow->alflags 14 years ago
Anoop Saldanha 0c94d910e4 Removed FLOW_AL_STREAM_TOSERVER and FLOW_AL_STREAM_TOCLIENT. Use STREAM_TOSERVER and STREAM_TOCLIENT instead 14 years ago
Anoop Saldanha ac5584a863 Removed FLOW_AL_PROTO_DETECT_DONE. Replaced it with FLOW_ALPROTO_DETECT_DONE, stored it in Flow->flags 14 years ago
Anoop Saldanha 49e2b580cb Removed FLOW_AL_PROTO_UNKNOWN. We don't need this flag 14 years ago
Anoop Saldanha 38fe2b9070 Removed FLOW_AL_STREAM_START, EOF and GAP flags. We don't need these. Just use STREAM_* flags 14 years ago
Gurvinder Singh 7d0781b349 added support to log dropped packet as netfilter logs while in inline mode 15 years ago
Victor Julien fc248ca7a1 Many small performance updates. 15 years ago
Pablo Rincon 5c43db85ce Drop streams on inline mode when a drop rule match from a reassembled stream and/or app layer inspection 15 years ago
Pablo Rincon a8cb8d830b Fix for bug 186 and thresholding issue handling ip versions 15 years ago
Pablo Rincon eed0ef6e69 Adding tag keyword support 15 years ago
Victor Julien b60d2c4345 Fix flags mixup issue in the app layer. 15 years ago
Pablo Rincon 8cc525c939 UDP support at AppLayer message handling 15 years ago
Victor Julien c26434fef1 Move flow use cnt to atomic and outside of the flow mutex protection. 15 years ago
Victor Julien 2fd31a1a11 Remove dsize grouping from detection engine grouping reducing memory usage. Store sgh in flow to reduce lookups. Reduce locking in alert handling. Increase default grouping values as we use less memory. 15 years ago
Victor Julien 32e3fea9e6 Exclude parts of a flow that are not changing after init from the flow mutex. Cleanup flow-hash function. 15 years ago
Pablo Rincon 29a6fc2f03 Adding some flow improvements and recovery on emergency mode 15 years ago
William Metcalf 2eef905c07 GPL and Copyright header updates. 15 years ago
Victor Julien 70b32f7380 First stab at creating a stateful detection engine. 
Stateful detection for app layer detection keywords, except uricontent. Stores it's partial results in the flow structure. Other modifications:

- Generalize transaction tracking, logging and inspection.
- Adapt http and dcerpc to use the new transaction handling.
- Stream engine now always notifies app layer of a stream eof.

This commit fixes bug #124.
 15 years ago
Pablo Rincon 1238668961 Adding actions order and suport for rule action "pass" 15 years ago
William Metcalf ce01927515 Import of GPLv2 Header 050410 15 years ago
Victor Julien fc2029ef58 Fix small memuse counter issue in flow subsys, remove emergency printfs 15 years ago
Victor Julien 74dfbc0c49 Move flow flags to flow.h 16 years ago
Victor Julien e3552a8e3f Add more comments to detect and flow structures. 16 years ago
Pablo Rincon 34216fd3e2 bug87 Fix IPOnly veredicts on flows 16 years ago
Victor Julien 10cc9d5b6a Add icmp flow handling. 16 years ago
Pablo Rincon e26833be3f Changing mutex/spinlocks/conditions naming types 16 years ago
Pablo Rincon 769022f4be Adding support for Mac OS X, FreeBSD, centrailizing mutex/spins/conditions in a macro API, and some unittests 16 years ago
Gurvinder Singh 71da019734 some minor changes 16 years ago